Removing races with negative expectancy

The sport of kings.
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robsmith
Posts: 76
Joined: Wed Aug 25, 2010 12:19 pm

Hi all,

I’ve read a few things where peter talks about removing things with a negative expectancy to improve results.

But how big a sample size do I need before concluding something is negative rather than variance?

Thanks
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westbamtrading
Posts: 197
Joined: Tue Oct 23, 2018 4:58 pm

Have you got a link to what Peter was illuding to?
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